Windows 8.1 comes with System Image Backup but it needs to be manually run and cannot be scheduled from GUI.

If you have purchased Linux NAS storage that uses sparse file allocation and does not have root privilege, you will encounter error when running Windows System Image Backup directly into Linux NAS share folder.

Since you have purchase it, I advise make use of it and create a system image backup with VHD for recovery in case.

You decide!!

Step 1: Creation of Backup Account

1. On Linux NAS, create a share folder and user account

2. On Windows Server, logon with Administrator account and create New User with the same username and password in Linux NAS. In this case, I create a new account ‘BackupWSB’